Home Postcode finder QLD Rosslea Rosslea postcode QLD Rosslea is a locality in Queensland covered by postcode 4812. Postcode 4812 State or territory Queensland (QLD) Region North QLD Add a free Rosslea business listing Be the first listing in Rosslea Common questionsWhat is the postcode for Rosslea?Rosslea, QLD has the postcode 4812.What state is Rosslea in?Rosslea is in Queensland (QLD).Does postcode 4812 cover more than one suburb?Yes. Postcode 4812 covers 9 localities, so the postcode alone does not identify Rosslea. Browse other postcodes in Queensland, or widen the search to every Australian postcode.